Linear Engine / p-06_covington
.pdf
College of Engineering and
Mineral Resources
THE LINEAR ENGINE PATHWAY OF
TRANSFORMATION
Nigel Clark, Parviz Famouri, April Covington, Matthew
Robinson
Center for Alternative Fuels, Engines and Emissions West Virginia University
March 22, 2012
CAFEE Center for Alternative Fuels, Engines and Emissions
Overview
Concept:
Internal combustion engine where power is translated in a linear fashion as opposed to traditional rotational translation
Linear Engine Advantages: |
WVU 3rd Gen Linear Engine: |
Minimal moving parts |
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Reduced maintenance |
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Simplified lubrication |
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Higher power density |
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No flywheel, crankshaft, camshaft(s) |
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Increased efficiency |
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Low piston skirt / friction forces |
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Adjustable compression ratio |
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Multi-fuel operation |
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•Employment of new combustion regimes
Compression ignition
Two opposed pistons on a common linking shaft Permanent magnet linear alternator
250 Watt charging system Independent cooling (air-cooled) Low temperature combustion
Direct in-cylinder injection (piezoelectric injectors) or homogenous charge port injection
Spring-assist (operating frequency control)
CAFEE Center for Alternative Fuels, Engines and Emissions